Home > max key > mysql error 1071 key too long

Mysql Error 1071 Key Too Long

here for a quick overview of the site Help Center Detailed answers to any questions you might mysql innodb increase max key length have Meta Discuss the workings and policies of this site

Specified Key Was Too Long Max Key Length Is 767 Bytes Innodb

About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting mysql max key length ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 index column size too large. the maximum column size is 767 bytes. million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Mysql::Error: Specified key was too long; max key length is 1000 bytes up vote 16 down vote favorite 4 script/generate acts_as_taggable_on_migration rake db:migrate causes Mysql::Error: Specified key was too long; max key length is 1000 bytes: CREATE INDEX

Error 1709 (hy000): Index Column Size Too Large. The Maximum Column Size Is 767 Bytes.

`index_taggings_on_taggable_id_and_taggable_type_and_context` ON `taggings` (`taggable_id`, `taggable_type`, `context`) What should I do? Here is my database encoding: mysql> SHOW VARIABLES LIKE 'character\_set\_%'; +--------------------------+--------+ | Variable_name | Value | +--------------------------+--------+ | character_set_client | latin1 | | character_set_connection | latin1 | | character_set_database | utf8 | | character_set_filesystem | binary | | character_set_results | latin1 | | character_set_server | latin1 | | character_set_system | utf8 | +--------------------------+--------+ 7 rows in set (0.00 sec) mysql sql ruby-on-rails indexing mysql-error-1071 share|improve this question edited May 23 '11 at 21:32 OMG Ponies 199k37360417 asked Aug 15 '10 at 20:15 amaseuk 1,18231537 Provide more information first. What is being migrated? –Pekka 웃 Aug 15 '10 at 20:23 github.com/mbleigh/acts-as-taggable-on –amaseuk Aug 15 '10 at 20:25 github.com/mbleigh/acts-as-taggable-on/blob/master/generator‌s/… –amaseuk Aug 15 '10 at 20:26 1 Similar problem here community.engineyard.com/discussions/problems/… that got resolved but don't know how. –amaseuk Aug 16 '10 at 15:07 add a comment| 5 Answers 5 active oldest votes up vote 40 down v

CI MySQL Sandbox MariaDB data chef Adtech Twitter GitHub RSS Using Innodb_large_prefix to Avoid ERROR 1071 If you've ever tried to add an index that includes a long varchar column to an InnoDB table in MySQL, you may have seen this error: 1 ERROR 1071 (42000): Specified innodb_large_prefix key was too long; max key length is 767 bytes The character limit depends on mysql max key length is 3072 bytes the character set you use. For example if you use latin1 then the largest column you can index is varchar(767), but if you

Django.db.utils.operationalerror: (1071, 'specified Key Was Too Long; Max Key Length Is 767 Bytes')

use utf8 then the limit is varchar(255). There is also a separate 3072 byte limit per index. The 767 byte limit is per column, so you can include multiple columns (each 767 bytes or smaller) up to 3072 http://stackoverflow.com/questions/3489041/mysqlerror-specified-key-was-too-long-max-key-length-is-1000-bytes total bytes per index, but no column longer than 767 bytes. (MyISAM is a little different. It has a 1000 byte index length limit, but no separate column length limit within that). One workaround for these limits is to only index a prefix of the longer columns, but what if you want to index more than 767 bytes of a column in InnoDB? In that case you should consider using innodb_large_prefix, which was introduced in MySQL 5.5.14 http://mechanics.flite.com/blog/2014/07/29/using-innodb-large-prefix-to-avoid-error-1071/ and allows you to include columns up to 3072 bytes long in InnoDB indexes. It does not affect the index limit, which is still 3072 bytes as quoted in the manual: The InnoDB internal maximum key length is 3500 bytes, but MySQL itself restricts this to 3072 bytes. This limit applies to the length of the combined index key in a multi-column index. Read on for details and examples about innodb_large_prefix. Here are a few pre-requisites for using innodb_large_prefix: At the database level you have to use innodb_file_format=BARRACUDA At the table level you have to use ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED The default file format is still Antelope for backwards compatibility, and the default row format is COMPACT. You can set both innodb_file_format and innodb_large_prefix dynamically, but you should also set them in my.cnf so they survive a restart. Here's an example. If I try to create this table with innodb_large_prefix disabled I get an error: 1 2 3 4 5 6 7 8 mysql> create table if not exists utf8_test ( -> day date not null, -> product_id int not null, -> dimension1 varchar(500) character set utf8 collate utf8_bin not null, -> dimension2 varchar(500) character set utf8 collate utf8_bin not null, -> unique index unique_index (day, product_id, dimension1, dimension2) -> ) ENGINE=InnoDB DEFAULT CHARSET=utf8;

log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of http://dba.stackexchange.com/questions/11393/mysql-error-1071-specified-key-was-too-long-max-key-length-is-1000-bytes-whil this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Database Administrators Questions Tags Users Badges Unanswered Ask Question _ Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. Join them; it only max key takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top MySql - ERROR 1071 Specified key was too long; max key length is 1000 bytes while restoring dump up vote 4 down vote favorite while trying to restore a MySql Dump, i get the following error: max key length ERROR 1071 (42000) at line 25: Specified key was too long; max key length is 1000 bytes any ideas? mysql mysqldump share|improve this question edited Jan 23 '12 at 16:41 RolandoMySQLDBA 108k15139276 asked Jan 23 '12 at 15:54 Ran 58351223 add a comment| 1 Answer 1 active oldest votes up vote 2 down vote accepted You may to have adjust some VARCHAR length in some table based on the Character Set you are using. That exact error message is actually posted as a bug report from Nov 2004, when in fact, it is not really a bug. That should direct you on how to adjust key lengths, especially your PRIMARY KEYs. If you know which table is causing the Error 1071, you have to do the following: Step 01) mysqldump only database schema mysqldump --routines --triggers --all-databases --no-data > MySQLSchema.sql Step 02) mysqldump only data mysqldump --all-databases --no-create-info > MySQLData.sql Step 03) Using vi or some other editor, edit the table's PRIMARY KEY to manually limit the PRIMARY KEY in such a way that the key does not exceed 1000 characters. Step 04) Load the schema mysql -A < MySQLSchema.sq

 

Related content

database error 1071 while doing query

database error while doing query p version roll out and QA raquo phpList maintainer needed raquo UI lite phpList plugins raquo phpList API raquo rssmanager phpList org My View View Issues Change Log RoadmapView Issue error specified key was too long max key length is bytes Details Jump to Notes Print IDProjectCategoryView StatusDate SubmittedLast Update phplistAll Otherpublic - - - - ReporterdanieleintPrioritynormalSeverityminorReproducibilityalwaysStatusresolvedResolutionfixedPlatform-OS-OS Version-Product Version Target Error hy Index Column Size Too Large The Maximum Column Size Is Bytes Version XFixed in Version Summary Unable to install with UTF- database using MySql DescriptionMysql limit the index lenght to bytes The Error

error 1071 42000

error p here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies error specified key was too long max key length is bytes of this site About Us Learn more about Stack Overflow the company Business Error hy Index Column Size Too Large The Maximum Column Size Is Bytes Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Specified Key Was Too Long Max Key Length Is Bytes Mysql Ask Question x Dismiss Join the Stack Overflow

error 1071 sqlstate 42000 er_too_long_key

error sqlstate er too long key p exceeded the limit of the maximum error specified key was too long max key length is bytes key length A key can not be longer than bytes error hy index column size too large the maximum column size is bytes bytes for InnoDB Please note that this limit is set in bytes not in characters So if you use a multi-byte Innodb large prefix character set you can get this error even if the sum of column lengths is less than because column length is defined in characters Below is an example of

fusion pro error 1071

Fusion Pro Error p Register FAQ Calendar Today's Posts Search Notices If you are not registered or logged in you can view the forums but you cannot post to them The latest version of Error Specified Key Was Too Long Max Key Length Is Bytes FusionPro VDP is Windows and Mac span Adobe Acrobat DC Adobe InDesign specified key was too long max key length is bytes CC Mac OS X El Capitan and span Windows are now supported Please follow MarcomCentral on LinkedIn Facebook Error Specified Key Was Too Long Max Key Length Is Bytes Instagram and Twitter We

mysql error 1071 max key length

Mysql Error Max Key Length p here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more mysql innodb increase max key length about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users specified key was too long max key length is bytes mysql Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of million programmers just like you helping mysql

mysql error 1071 specified key was too long

Mysql Error Specified Key Was Too Long p here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn specified key was too long max key length is bytes innodb more about Stack Overflow the company Business Learn more about hiring developers or Specified Key Was Too Long Max Key Length Is Bytes Mysql posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Mysql Innodb Increase Max Key Length

mysql error 1071

Mysql Error p CI MySQL Sandbox MariaDB data chef Adtech Twitter GitHub RSS Using Innodb large prefix to Avoid ERROR If you've ever tried to add an index that includes a long varchar column to an InnoDB table in MySQL you may have seen this error Specified Key Was Too Long Max Key Length Is Bytes Mysql span class 'line' ERROR Specified key was too long max key length is specified key was too long max key length is bytes mysql bytes span The character limit depends on the character set you use For example if you use latin then

mysql error code 1071

Mysql Error Code p here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies Specified Key Was Too Long Max Key Length Is Bytes Mysql of this site About Us Learn more about Stack Overflow the company mysql innodb increase max key length Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users specified key was too long max key length is bytes mysql Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a

mysql error number 1071

Mysql Error Number p here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting specified key was too long max key length is bytes mysql ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join Specified Key Was Too Long Max Key Length Is Bytes Mysql the Stack Overflow Community Stack Overflow is a community of million programmers just like

mysql error no 1071

Mysql Error No p here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and specified key was too long max key length is bytes mysql policies of this site About Us Learn more about Stack Overflow the mysql innodb large prefix company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users mysql innodb increase max key length Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of million programmers just like you